The ratio of the number of boys to the number of girls is 5 : 7.
Each boy is given 6 stickers.
Each girl is given 2 stickers.
The total number of children is 108.
- How many stickers are given to the children?
- How many less boys than girls are there?
- How many less stickers are given to the girls than the boys?
|
Boys |
Girls |
Number |
5 u |
7 u |
Stickers for each person |
6 |
2 |
Total stickers |
30 u |
14 u |
(a)
Number of children
= 5 u + 7 u
= 12 u
12 u = 108
1 u = 108 ÷ 12 = 9
Total number of stickers
= 30 u + 14 u
= 44 u
= 44 x 9
= 396
(b)
Number of less boys than girls
= 7 u - 5 u
= 2 u
= 2 x 9
= 18
(c)
Number of less stickers are given to the girls than the boys
= 30 u - 14 u
= 16 u
= 16 x 9
= 144
Answer(s): (a) 396; (b) 18; (c) 144